How to Install Car Rain Guards?
3 Answers
Installation method for car rain guards: 1. Clean the area where the rain guards will be installed to ensure there are no debris that might prevent proper adhesion; 2. Compare the rain guard with the side mirror to check if the size is correct; 3. Once confirmed, peel off the 3M adhesive backing on the rain guard and attach it; 4. Press the rain guard firmly back and forth with your hand to ensure it is securely fixed. Car owners can also use a hairdryer to heat the adhesive for better bonding strength. Car rain guards serve two purposes: rain protection and sun protection. When driving in light rain, you can slightly open the window for ventilation. Thanks to the rain guard, rainwater won’t enter, providing some rain protection. Additionally, since rain guards are usually black and semi-transparent, they can partially block direct sunlight from the driver’s eyes, reducing potential safety hazards.
Installing rain guards is actually quite simple, I've done it several times myself. First, clean the car window glass thoroughly, especially the edges where dust must be removed. Take out the rain guards and align them to check the position - some models have separate front and rear window guards, so be careful not to install them backwards. Peel off the protective film on the adhesive backing, but don't remove it all at once. Align the front edge first, then gradually peel and press as you go. The key is to apply firm pressure for over 30 seconds to ensure the adhesive bonds properly, and avoid opening the windows for two days after installation. Some people prefer using adhesion promoters, which do provide better results. Remember to choose models with drainage channels, as they significantly reduce wind noise at high speeds. If installing in winter, it's best to work in a warm garage since adhesives perform poorly in low temperatures.
My habit for installing rain guards involves bringing two tools: alcohol wipes and a heat gun. First, thoroughly clean the glass edges with alcohol, as grease can affect adhesion. After positioning the guards correctly, use the heat gun on low heat to warm the adhesive strip for 20 seconds (avoid using a lighter to prevent deformation). While the adhesive is soft, quickly press the guard into place. Press from the center outward to eliminate air bubbles, applying extra pressure on curved areas around the window frame. Avoid installing at midday in summer when the adhesive is too soft and prone to shifting—early morning or evening is best for stability. Don’t forget to remove the outer protective film; many realize too late that it’s still on. Finally, leave the window closed overnight for the adhesive to set firmly before use.
